I'm going to be installing an inline fuel pump and FMU and I need to know what size are the stock fuel lines. I did a search and could only find one posts pertaining to the size of the stock fuel lines (94 B18B). In the post they said that they thought the stock lines were 3/8 outer and 5/16 inner. Can anyone confirm this, thanks.

 

I just installed an intank pump and the line i connected to to the pump was a 5/16 inner.